立项配置页初步优化

backend/app/models/study_monitoring_strategy.py

@@ -0,0 +1,24 @@
+import uuid
+from datetime import datetime
+
+from sqlalchemy import Boolean, DateTime, ForeignKey, String, Text, func
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.db.base_class import Base
+
+
+class StudyMonitoringStrategy(Base):
+    __tablename__ = "study_monitoring_strategies"
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    study_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("studies.id"), index=True, nullable=False)
+    source_setup_item_id: Mapped[str | None] = mapped_column(String(64), nullable=True)
+    strategy_type: Mapped[str] = mapped_column(String(50), nullable=False)
+    detail: Mapped[str] = mapped_column(Text, nullable=False)
+    frequency: Mapped[str] = mapped_column(String(50), nullable=False)
+    enabled: Mapped[bool] = mapped_column(Boolean, nullable=False, default=True)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), nullable=False, server_default=func.now(), onupdate=func.now()
+    )